James m



l. Wl. ,COLEMN-AND KL-FF. NYSROWW.

GAR TRUCK.

I APPLICATIONFILEU'HY 31.1911.

Patente Nov. 18, 1919.

3 SHEETS-SHEET L MN ww mM@r uw smv J. M. `COLEMAN AND K. F. NYSTHOM.

CAR TRUCK. APPLICATION HLED MAvai. |911.

Patented Nov. 18, 1919.

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1lraw 1. M. CULEMANAND K. F. Nysmorw.

Patented Nov. 18, 1919.

' 3 SHEETS-SHEET 3.

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James /7. (aleman /far/ E Nys/ Fam JAMES IVI. COLEMAN AND KARL F. NYSTROM, 0F MONTREAL, QUEBEC, Gltllltflflll.

can-rauen.

Specification of Letters Patent.

Patented new. is, rais.

4Altbplieution Bled Hay 31, i917. herial No. lwtll).

To all 'whom t may concern:

Be it known that we, J Arms M. CoLEnAN, a citizen of the United States of America, and KARL F. NrsTRoM, a subject of the King' of Sweden, and both residents ofthe city ot Montreal, in the Province of Quebec and Dominion of Canada, have invented certaln new and useful Improvements- `-`in Car- 'l`rucl s, ot which the following is a lull, clear, and exact description. n

This invention relates to improvements in car trucks, andthe object of the invention may be stated broadly as threefold; namely, to provide a car truck particularly adapted for the clasp brake now coming into` use; secondly, to provide a clasp bra ce gear cooperating with the truck; and thirdly, to provide a device which may be quickly, easily and economically constructed, and which will have a largey measure of durability and elliciency.

Among the subsidiary objects of, the in-V vention 'are theemployment of a minimum number. of parts, the standardization of parts, and convenient disposition'of parts permitting easy replacements. The latter of these objectsrefers more particularly to the brake gear, While the former refer both to the truck construction and brake gear.

lircadly speaking, the invention consists in providing a` truck frame 4built up of a minimum number of parts, and having attaching and guiding lugs for the brake' gear placed thereon at suitable points. The trucli" frame may be composed of structurel or rolled steel members riveted together, or of a series of castings riveted together, while the brake gear.' consists ofa series of beams, hangers, release springs, operating levers and links, which are as far as possible uni Vform throughout the truck, so that interchange ot parts and renewals may be easily effected.

ln the drawings which illustrate the in-` ventionz-fy i Figure 1 is a plan view of the truckI with the brake levers and links omitted on one` side.

Fig. 2'is a View, half in elevation and half in vertical section on the longitudinal center line ol the-truck.

llig. 3 is a view half in end elevation and end sill proper.

half in vertical cross section on the line, 3-3, Fig. l.

Fig. t is a Aperspective view of one ot the release springs in inverted position.

Fig. 5 is a perspective view of the brake rod. guide and trarne corner brace at one end i ing another form of cross section which may be used for the cast members.

Referring more particularly to the drawings, 1l designates v'the longitudinal side members or wheel pieces ci' a truck, which ina-y be either rolled steel channels or castings of channel shape. As will be clearly seen, these Wheel pieces are absolutely straight throughout their entire length, withoutoflset for equalizers and accommodating M.y C. B. standard pedestals. The wheel pieces `,are connected at the ends by transverse end sills l2, which are connected under theiwheel pieces. ,These end sills are offset downwardly in their. central portion, as clearly sho-wn, and. are preferably l..- shaped in cross section. lhe end sills may 'be constructed et" rolledsteel angles ,forged to the necessary shape, o'r maybe steel. castings. ln theforrner case', gusset plates 13 will be used to connect the end sills tothe Wheel pieces, and castings le will be provided Where 'necessary for the brake gear, While in the latter case, the brake gear receiving portions and the equivalent ofthe gusset plate will `be formed integral with the Intermediate the wheel positions, transolns 15 are provided connecting the wheel pieces, each of which is formed oi' a pair of parallel members 16 adapted to receive between them a side bolster 17. The

members 16 are preferably lshaped in cross section, as shown, and in the case of a truck bullt up of structural steel,y these members will be angles, and will be connected to they lill lill) lll autres@ of this nut precludes the possibility ol it .v

being turned and therefore the only way in which adjustment can be ell'ected is by turning the'link in the nut. '.lo accomplish this, the link must be disconnected 'trom its lever IThis operation requires consider.- able time and the expenditure of a certain amount oi torce, so that this adjustment will ndt be attempted by unauthorized or incoin potent i persons.

When, however, such ad- Ijustnient is necessary, it may be carried out without great ditliculty as the pin which requires removal is near the top and endr or' the truck and readily accessible without it being necessary to raise the car body oil the tinck. The links 37 pass between the guide members 22 and Z3 previously referred to, and are thereby maintained in proper line; although considerable vertical movement `is allowed. provided with a vertically disposed slot, through which the link passes. ln order, to insert the link, it must be disconnectedfrom the lever 34, its eye 42 passed through the slot, the link then turned on its anis through 900 and connected to the lever 3a. lt will be readily seen that the eye l2 'now prevents repassage of the link through the slot, with out its disconnection from the lever rllhis arrangement makes the truck a. coinplete unit in itself, Aand prevents the loss of: these links when the trucks are separated The links 38 ot each truck are connected vby an evener 413, which is ln turn connected by a rod lll with the brake (.iylinder. T he duplicate of brake gear in the truck are thus connected up and the t'orce equally distributed between the two. The operation of the gear is obvious, and it will be readily understood that the force Iplied through the'links- 323 is equally disu 'tributed among all the brake shoes, so that each wheel receives equal braking force.

While angles are shown as the transverse members in the frame, when built of rolled steel sections, it will be understood that the invention is not limited to angles, as these members may be of any other suitable section, such as the channel dsections shown in the cast members in lligs. 7 and 8, and the l section, shown in Fig. 10.

lrorn the foregoing description, it will be readily understood. in what manner the obrlhe levers 34C of the i rllhe bracket il ot the linlr. 38 is 4 jects set i'orth in the beginning of the speciicatlon have been attained. The truck frame 1s extremely simple and easlly constructed either oir rolled structural steel 'or steel castings.. Parts have been standardized 'so that the cost of construction and renewals isl reduced. llhe arrangement of the parts is such that replacements and repairs are easy. rlhe brake gear permits of every clesired adjustment, and has in addition the great advantage that the brake beams travel. in aK horizontal plane and apply the shoes uniformly to the wheels. While the invention has been illustrated and described only `as applied to siii-wheel trucks, it will be ob vious that it is equally applicable to fourwheel trucks. y

Having thus described our invention, what we clairnisa-r l. lin4 truck construction, wheel pieces,

bolster guides connected thereto, gusset plates arranged. between the wheel pieces and Ibolster guides, upwardlyturned at their in-` ner edges, and bolster hanger supports cooperating with said inturned plate portions to torni brake gear guides.

2.. ln trucl construction wheel pieces, transverse m .Inbers connected therebetween, and stillening members connected between the wheel pieces and transverse members at the corners or the truck, said stilening meinbers each having a projecting portion forming a bralre fear guide. f

3. lin tru-ci: construction, a iframe comprising a pair ot wheel` pieces, end sills and .transoms connecting the wheel pieces, cast stililening members connected between the wheel pieces and end sills, gusset plates conn nected between the wheel pieces and trann soms having the inner edges thereof upturned, end sill and wheel piece connectors, and upturned portions of the transom .gusset plates forming brake gear guides.

l. ln truclreonstruetion, a frame comprising straight wheel pieces free from projec tions, end sills and transoms-connfee'ting `the wheel pleces, a brake gear, supporting and `guidiing means therefor on the end sills and transoms, each of said end sills and transoms with the :brake gear supporting and guiding means thereon eing a single castin 5. ln truck construction, a truck frame, and brake gear tension member guides formed. integral with the frame.

6. ln truck construction, east truck frame members, and brake gear tension member guides Jformed integral with the trarne mehr bers.

'7.' In truck construction, a truck frame, and integral extensions of the members thereof forming brake gear tension member guides.

8. ln truck construction, a truck frame, and integral. extensions from said frame ar ranged in pairs and adapted to embrace and -lZll hold against lateral :movement the tension members of a, brake gear.

9 En lmuck.consti?notion, a truck frame, ndvsopamto members thereon arranged in pairs and adapted to embrace '.andhold against lateral movement the tension mem- Psors of a. brake gear.

l0. in truck construction, a truck 'ame,

and brake Fear enson member guides thereon losmuda to hold brake gen1' mmnners 10 agamst escape Whlle opomtlvely l@ormecicd in the brake' gear.

In Witness Wherwf, We have hereunto sot our hands.

JAMES M. COLEMAN. KARL NYSTROM. 

